Class 1 agents are divided further into subclass 1a 1b and 1c.

第一类药物可进一步分为三种亚类，1a， 1b和1c。

The earliest armored fish we have fossils of is called Sacabambaspis, a member of the subclass known as Arandaspida.

我们拥有化石的最早的装甲鱼被称为 Sacabambaspis，它是 Arandaspida 亚纲的成员。

While subclass 1c has no effect on ERP, 1a prolongs and 1b shortens ERP respectively .

1c亚类对ERP无影响，1a延长ERP，1b缩短ERP。

All modern amphibians—frogs, toads, salamanders, and the legless caecilians—belong to the same subclass of animals known as the Lissamphibia.

所有现代两栖动物——青蛙、蟾蜍、火蜥蜴和无腿的盲肠动物——都属于被称为 Lissamphibia 的同一动物亚纲。

Researchers have discovered that itch signals in their skin are transmitted via a subclass of the nerves that are associated with pain.

研究人员发现，他们皮肤中的瘙痒信号是通过与疼痛相关的神经亚类传递的。

Basically when you talk about drugs, you can talk about small molecules or you can talk about these complex biological protein like things which is a subclass called antibodies.

你在谈论药品时候，你可以说出一些小分子物，或者说出一些复杂的生物蛋白，比如抗体蛋白，更小的分类。

Perhaps your most diverse type is your classic connective tissue proper. It comes in both loose and dense subclasses, based on how many fibers it has in its ground substance.

也许你最多样化的类型是你的固有结缔组织本身。它有松散和密集的亚类，这取决于它在基质中有多少纤维。

Now, IgA comes in subclasses—IgA1 and IgA2, IgA1 is found mainly in the serum while IgA2 is more often found in the mucus secretions, typically in its dimeric form.

IgA分两个亚型：IgA1和IgA2；IgA1主要存在于血清中，IgA2主要以二聚体形式存在于粘膜分泌液中。

These subclasses differ in the strength of sodium channel blockage and in their effect on the duration of action potentials and the effective refractory period the erp.

这些亚类在抑制钠通道的强度、对动作电位持续时间和有效不应期的影响上各有不同。

It is the consequence of a mutation in a calcium ion channel gene Ion specific channels of which calcium channels are a subclass belong to a different group of transmembrane proteins from the channel redopsins.

它是钙离子通道基因突变的结果。离子特异性通道是钙通道的一个子类，属于与通道红细胞蛋白不同的跨膜蛋白组。